The July 31, 1973 edition of The Mobile Register announces that Three Dog Night will appear in concert the following Wednesday at the Municipal Auditorium, with T-Rex starring Marc Bolan as the supporting act. Publication: The Mobile Register Date: July 31, 1973 Country: United States The article states that Three Dog Night will return to Mobile for an 8 p.m. concert at the Municipal Auditorium. Appearing with the group will be T-Rex, a headline act in its own right starring